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      12-17-2012, 02:14 AM   #1

Drives: AW E92 M3
Join Date: May 2012
Location: Washington, DC

iTrader: (3)

BMW Advanced Battery Charging System/Battery Tender - for lighter

I don't drive my car that frequently (live in the city and do not drive to work or anywhere on a regular basis), and ended up buying the BMW branded battery tender.

I opted for the version that plugs into the cigarette lighter, as that seemed a bit less conspicuous than having my hood cracked. I park in my condo's garage and would rather not attract any attention.

I was easily able to close the door securely with the cord running through it. Will doing this long term be bad for the rubber door seal?

Thanks for the info!